In the Black Hills of South Dakota, not far from the patriotic visage of Mount Rushmore, the curious traveler can find the growing realization of one man’s dream. In 1939 Chief Henry Standing Bear of the Sioux asked Bostonian Korczak Ziolkowski, already a well-known sculptor, to come west to carve a mountain. Standing Bear wanted him to tell the story of his people, “So that the white...